Sole-rounding machine



Sept. 2. [924. v 1,506,839

G. JULIAN SOLE ROUHDIIIG MACHINE Filed Feb. 19 1920 4 Sheets-Sheet 1 Filed Feb. 19 1920 4 Sheets-Sheet 2 rlllllllll x'lll I II DIII IIIIIII Sept. 2, I924.

G. JULIAN SOLE ROUNDING MACHINE 4 Sheets-Sheet. 3

Filed Feb. 19. 1920 G. JULIAN SOLE ROUNDING KACHINE FiledFab. 19

1920 4 Sheets-Sheet 4 Patented Sept. 2, 1924.

UNITED STATES PATENT OFFICE.

GIDEON JULIAN, O'F BEVERLY, MASSACHUSETTS, ASSIGNOB. TO UNITED SHOE MA.-

CHINERY CORPORATION, OF PATERSON, NEW

JERSEY.

JERSEY, A CORPORATION OF NEW SOLE- ROUNDING MACHINE.

Application filed February 19, 1920. Serial No. 359,769.

To all whom it may concern:

Be it known that I, GninoN JULIAN, a citizen of the United States, residing at Beverly in the county of Essex and State of. Massachusetts, have invented certain new and useful Improvements in Sole- Rounding Machines; and I do hereby derlare the following to be a full. clear, and

exact description of the invention, such as will enable others skillet. in thoart to which it appertaius to make and use the same.

The invention relates to that class of sole rounding machines which comprise a pattern having the shape of the sole to be rounded, a knife carrier, and means for relatively moving the pattern and knife carrier to transfer the point of operation of My the knife around the pattern.

The primary object of the invention is to provide an improved means for actuating the knife carrier durin its relative travel around the pattern, which is simple and r durable in construction, and which is well adapted for high speed operation and for causing the knife properly to follow the curves and angles of tie pattern. To this end the knife carrier is moved in and out and is swung to change its angular position during the rounding by two cranks connected with the knife carrier and rotated through two revolutions during the roundin" of the sole. The cranks are so arranged that theytravel in opposite directions in passing the line of centers and thus supplement each other in securing,

both at the sides and atthe ends of the pattern, the rapid change in the angular position of the knife carrier requisite for high speed rounding of the shanks and ends of shoe soles of varyin styles and sizes: The knife carrier is preferably pivoted on one, and arranged to slide on the other, of the cranks, and the cranks are also preferably arranged so that they are in radial alignment and extending outward from their shafts when the knife is at the ends of the pattern and are in line and extending inward from their shafts when the knife is midway of the pattern on each side. This construction and arrangement gives a rapid swing to the knife carrier in a direction to change its angle and also to cause a slowing down of the relative travel of the knife while passing about the toe and the heel and also gives a less rapid swing to the knife carrier in a. direction to increase the relative travel of the knife while passing through the shank on each side of the sole. The movements given to the knife carrier by this construction and arrangement are a so well adapted for causing the knife to follow the outline of patterns of varying shapes and sizes. Adjustment for wide vanations in sizes may also be readil made by change in the throw of one or oth of the cranks.

Further features of the invention relate to means for positioning the sole blanks on the pattern preparatory to rounding, and to means for causing the knife to move awa T from the pattern at the end of the roun ing so that the edge of the succeeding sole blank may overlap the pattern at the point where the rounding begins and ends.

The various features of the invention will be readily understood from an inspection of the accompanying drawings and following detailed description. of the machine illustrated therein.

In the drawings Fig. 1 is a side elevation showing so much of a sole rounding machine as is-necessary to illustratethe application of the present invention thereto. Fig. 2 is a partial plan view showing the mechanism for operating and controlling the knife carrier. Fig. 3 is a similar View showin the parts in a different position. Fig. 4 1s a sectional elevation on line 44=, Fig. 2.. Fig. 5 is a detailed section through the sliding crank pin. Fig. 6 is a. detailed plan view showing the means for causing the knife to leave the pattern atthe end of the rounding; Fig. 7 is a sectional view on line 7-7, Fig. 6. Fig. 8 is a. sectional detail showing the spring for holding the knife against the pattern. Fig. 9 is a detailed elevation of the. parts shown in Fig. 6 and Fig. 10 is a detail showing parts of the mechanism for positioning the sole blank on the pattern.

In the drawings the invention. is shown as embodied in a machine in which the relative travel of the knife around the pattern is secured by rotation of the Support on which the knife carrier is mounted, but it will he understood that the invention is also applicable to machines in which the relative travel of the knife is secured by rotation of the pattern.

The machine shown is provided with a fixed pattern 2, a vertically movable clamping plate 4, and a rotating table 6for sup porting the knife carrier 8. The knife 10 is mounted on the inner end of an arm 12 secured to a segmental plate which is pivoted at 14 to the knife carrier. The plate is provided with a gear segment 16, e gaged by a pinion 18, which is acted on by a spring 20, which tends to turn the pinion in a direction to press the knife against the pattern.

The knife carrier is moved in and out and is oscillated to change its angular position by two cranks mounted on the rotary support 6 and connected with the carrier. As shown the knife carrier is ivoted on a crank pin 22 which is secur to a crank arm 24 on tie upper end of a shaft 26, mounted in the rotary support. The knife carrier is also slotted at 28 to receive a sliding block 30 carried by a second crank pin 32 secured to a crank arm 34 on the upper end of a shaft 36 mounted in the rotary support. The shafts 26 and 36 are connected by gearing 38 so that they rotate in unison and in opposite directions and the shaft 26 is connected by a gear 40 with a stationary gear 42 of twice its size so that the crank shafts make two revolutions during the rounding of a sole. The cranks are so arranged that they are in radial alignment and extending outward from their shafts as indicated in Fig. 2, when the knife is at either end of the pattern and are in radial alignment and extending inward when the knife is midway of the pattern at either side as indicated in Fig. 3. When the knife is passing around the end of the pattern, as indicated in Fig. 2, the crank pin 32 will be moving in a direction opposite to that of the travel of the knife and will swing the knife carrier about the crank pin 22 in a direction to reduce the travel of the knife due to the rotation of the support 6, and consequently will, cause a slowing down of the knife as it approaches the end of the pattern. At the same time the crank pin 22 is traveling in a direction opposite to that of the crank pin 32, and will swing the knife carrier about the crank pin 32 in a direction to supplement the movement caused by the rotation of the crank pin 32. The resultant of these two movements may, by proper proportioning and arrange ment of the cranks, be such that there will be a rapid swinging movement of the knife carrier to keep the direction of pull on the knife approximately tangent to the pattern at the point of operation, and also to so vary the travel of the knife that the carrier will be swung through the proper angle while the knife is operating about the comparatively sharp curves at the heel, or about the sharper curves at the toe, even when rounding pointed toes. Inapproaching and passing the line of centers at the sides of the pattern, as indicated in Fig. 3, the cranks are also moving in opposite directions, and each will supplement the swinging move-ment caused by the other, but at this time the cranks are moving in a direction to increase the travel of the knife due to the rotation of the rotary support 6 so that there is a gradual change in the angular position of the knife carrier during its travel along the gradual or sweeping curves of the shank portion of the shoe sole. Since the distance between the crank pins is greater at this time than when operated about the ends of the pattern there will also be a less rapid change in the angular position in operating about the ends of the sole.

In order that the throw of one or both of the cranks may be varied to secure the movements of the knife carrier best suited to the style or size of sole tobe rounded the crank pins are adjustably secured in the crank arms as indicated in Figs. 4 and 5. As shown each crank pin is mounted upon a stud 44, the lower end of which is provided with a head 46 fitting within an undercut groove 48 in the corresponding crank arm 34 or 24. The upper end of the stud is screw threaded to receive a nut 50. The crank pin is provided with a flange 52, which underlies the knife carrier, or block 30, and a washer 5a is arranged between the nut- 50 and the upper end of the crank pin and forms a fian e overlying the upper side of the knife carrier, Or block 30. A sprin pressed pin 56 is mounted within the stud 44 and is adapted to engage any one of a series of holes 58 in the crank arm. The pin is provided with a knurled head at its upper end, by which it can be conveniently raised to disengage its lower end from the holes 58. lrvhen a crank pin is to be adjusted the pin 56 is disengaged from the hole 58 and the nut 50 is loosened so that the stud and crank pin may he moved along the crank arm until the pin 56 registers and enters anotherof the locating holes 58. The nut 50 is then tightened to clamp the crank pin and stud in adjusted position. Usually an adjustment of the crank pin 32 will be sufficient to secure the proper variations in the angular movement of the knife carrier in. changing from one size or style to another a-nd the throw of the crank pin 22, which gives in and out movements to the knife carrier, may remain unchanged. In extreme cases, however, it may be necessary to vary the in and out movement given to the knife carrier and in such case thismay be done by adjustment of the crank pin 22.

In operating upon certain kinds of sole blanks it is desirable that the edge of the blank overlap the edge of the pattern at the point where the rounding begins and ends and in such case the knife should be held away from the pattern when the sole blank is placed on the pattern by the operator. To secure this result means is provided for locking the knife carrying arm to the carrier, at the completion of the rounding, so that during the usual rebound or back feed of the knife carrier the knife will be carried away from the pattern by the relative rotary moven'ient between the pattern and knife carrier support. In order that there may he an overlap in the travel of the knife against the pattern at the starting point the mechanism for locking the knife in position on the knife carrier is so constructed that the knife will follow the pattern during a part of its rebound or back feed and will move away from the pattern as the rebound or back feed is completed.

In the construction shown the means for automatically locking the knife in position on the knife carrier comprises a pawl 66 arranged to engage the pinion 18 and adapted to be held in either active or inactive position by a spring pressed pin 62, the upper conical end of which is arranged to engage one orthe other of two recesses 64 in the tail of the pawl. The engagement of the pawl with the teeth of the pinion is controlled by a disk 66 secured to the upper face of the pinion and provided with notches 68 arranged to register with tooth spaces in the pinion and with intermediate concentric portions 70 which cover the teeth between the notches 68 and prevent engagement of the pawl therewith. The pawl is moved into and out of action by a weighted lever 72. connected with the pawlby a link 74 having a slot engaged by a pin on the pawl so that there is a limited lost motion between the lever and awl.

During the rounding operation the weighted arm 72 is held in its outer position by centrifugal force and holds the pawl in retracted inactive position. When the rounding operation is completed and the rotation of the support 6 is stop ed the weighted lever 72 swings forward into the position indicated in Fig. 6 and advances the pawl into engagement with the surface 70 on the disk 66. This movement of the pawl also brings the tail of the pawl into such position that the point of the pin 62 enters the side of the recess and tends to force the pawl into engagement with the pinion 18. Now as the backward movement of the rotary support 6 takes place the spring 20, acting through the pinion 18, and segment 16, causes the knife to follow the pattern until the resulting rotation of the pinion brings a notch 68, in the disk 66, into register with the end of inner recess 64 in the the pawl, when the pawl advances into engagement with the notch and corresponding tooth of the pinion and prevents further forward movement of the knife on the knife carrier. During the last part of the return movement of the rotary support and knife carrier the knife will, therefore, move away from the pattern so that the edge of the succeeding sole blank may overlap the pattern at the point where the rounding begins and ends. \Vhen the machine is again started the forward rotation of the rotary support carries the knife obliquely against the pattern and as the knife starts around the pattern it is moved outward on the knife carrier so that the segment 16 and pinion 18 are rotated against the action. of the spring 20, thus relieving the pressure upon the end of the pawl 60 and pressing it out of engagement with the pinion. The weighted arm 72 also swings outward and retracts the pawl into its inactive position, where it is retained by the engagement of the pin 62 with the outer recess 64.

The pinion 18 may be turned to adjust the tension on the spring 20, or to adjust the surfaces 71) and the notch 68 into proper relation to the end of the pawl 60 when the machine is in stopping position, by swing ing the segment 16 out of engagement with the pinion and then turning the pinion by means of a handle 76, whic is ivoted to a collar on the upper end of t e pinion shaft and is arranged to be swung into and out of engagement with a series of notches 78 formed in the cap 80, which covers the pinion and spring. The pinion may also he turned by the lever 76 to withdraw the knife from the pattern and hold'it in retracted position when the pattern is to be changed or when, for any other reason, it is desirable to temporarily hold the knife carrying arm against the action of the spring 20. When the machine is in operation this lever is thrown up out of engagement with the notches 78, although in Figs. 1 and 2 it is. for the sake of clearuess, shown in engagement with one of the notches.

For convenience in properly locating the block soles, or sole blanks, with relation to the pattern, the machine is provided with gages which are normally in retracted position where they do not interfere with the removal and replacement of the patterns or with the adjustment or manipulation of the parts cooperating with the pattern and which, during the movei'nent of the clamp into engagenient with the sole blank, are first moved into position to properly locate the sole with relation to the pattern and are then removed from the path of the knife during the final clamping movement of the clamp. Three gages are preferably used, one arranged to position the toe end of the upon the bracket the gage carriers 84: with the pattern.

sole and two arranged to engage and position one of the side edges of the sole, although this number may be varied if found desirable.

In the construction shown each gage 82 is in the form of a finger mounted upon a gage carrier Set, which is adapted to be moved into and out of engagement with the pattern 2. The finger 82 is pivoted near its upper end to the carrier 84 and is operated upon by a spring 86, which holds the gage in position against the inner end of an adjusting screw 88, the adjustment of which determines the position of the gage with relation to the edge of the pattern, when the lower end of the carrier 8% is in engagement with the pattern. The two side gages are adjustably secured upon a rock shaft 90 journaled in a bracket 92 secured to the overhanging head of the machine. The upper end of the end gage carrier is secured to a rock shaft which is connected by gears 94 with the rock shaft 90 and is journalcd in a bracket 96 adjustal'ily secured 92 by a clamping bolt 98. The rock shaft 90 is provided at its end with an arm 100 engaged by a spring pressed pin 102 which tends to IOck the shaft 90 and the shaft which carries the end gage in a direction to bring the ends of the gage carriers 84 into engagement with the pattern. The gages are moved toward and from the pattern by two dogs, or pawls, 104i and 106 formed on a block 10S, which is adjustably secured to the clampcarrier 110 by a clamping bolt 112 passing through a slot in the carrier. The pawls 1()-l and 106 are arranged to engage shoulders 114 and 116 formed on opposite ends of an arm .118. which is secured to the rock shaft 90. \Vhen the clamp is in its raised position indicated in Fig. 1, the pawl 106 is in engagcmcnt with the shoulder 116 and holds the in their fully retracted positions, as indicated in this figure. During the first part of the downward movement of the clamp the dogs 1% rcccde, thus causing the gages to move into sole locating position, which is determined by the engagement of This occurs before the clamp has finished its downward movement so that the operator may position the sole against the gages, or

the gages may act to shift the sole into proper position on the pattern in case it is brought against the gages before they reach their final sole locating position. During the final downward movement of the clamp the pawl 10% engages the shoulder 114 and rocks the shaft 90 in a direction to withdraw the gages from the path of the knife so that they will not interfere with the travel of the knife about the pattern during the rounding. During the upward movement of the clamp, after the rounding has been completed, the gages will move idly forward into locating position and will then be swung outward into their fully retracted positions as the clamp completes its upward movement.

The supporting table (3 may be rotated to carry the knife around the pattern to a point beyond its starting point and then return it to the starting point by any suitable mechanism such, for instance, as that indi cated in Fig. 1 and fully disclosed in Patent No. 1,048,511, Dec. 31, 1912.

While it is preferred to employ the specific construction and arrangement of parts shown and described, particularly in embodying the invention in machines for rounding soles such as are used in the manufacture of leather boots and shoes, it will he understood that this construction and arrangement is not essential and may be varied or modified as found desirable or best suited to the character of the material to be operated upon or the work which is to be done.

hat is claimed is:

1. A sole rounding machine having, in combination, a pattern and a knife carrier relatively movable to transfer the point of operation of the knife around the pattern, and two cranks connected with the carrier to move it in and out and change its angular position during such relative movement.

2. A sole rounding machine having, in combination, a pattern and a knifecarrier relatively movable to. transfer the point of operation of the knife around the pattern, two cranks, one of which is the pivot for the carrier, and the other of which has a sliding engagement with the carrier, and IDBELHS for rotating the cranks during the relative movement between the pattern and the knife carrier.

3. A. sole rounding machine having, in combination, a pattern and a knife carrier relatively movable to transfer the point of operation of the knife around the pattern, a crank connected to move the carrier in and out, and a second crank connected to swing the carrier.

4. A sole rounding machine having, in combination, a pattern and a knife carrier rclatively'movable to transfer the point of operation of the knife around the pattern, a crank. on which the carrier is pivoted, and a second crank connected to swing the carrier about the first crank.

5. A sole rounding machine having, in combination, a pattern and a support mounted for relative rotary movement, two cranks mounted on the support, a knife carrier pivoted on one crank, and having a sliding engagement with the other, and mechanism for rotating the cranks through two revolutions during the relative travel of the knife around the pattern.

6. A sole rounding machine having, in combination, a pattern and a support mounted for relative rotary movement, two cranks mounted on the support, a knife carrier pivoted on one crank, and having a slidi. engagement With the other, means for a justing' the throw of one or both of the cranks, and mechanism for rotating the cranks through two revolutions during the relative travel of the knife around the pattern.

7. A sole rounding machine having, in combination, a pattern and a support mounted for relative rotary movement, two cranks mounted on the support, a knife carrier pivoted on one crank and having a sliding engagement with the other, mechanism for rotating the cranks in opposite directions and bringing them into radial alignment at the sides and ends of the attern during the relative travel of the ife.

8. A sole rounding machine having, in combination, a pattern, a rotary support, two cranks mounted on the sup ort, and connected to rotate in opposite irections, planetary earing having a ratio of 1 :2 for rotating tie cranks and a knife carrier pivoted on one crank and having a sliding engagement with the other.

9. A sole rounding machine having, in combination, a pattern and a support for relative rotary movement, two oppositely rotating and similarly arranged cranks mounted on the support to pass the line of centers at the end and midway the sides of the pattern, and a knife carrier pivoted on one and sliding on the other crank.

10. A sole rounding machine having, in combination, a pattern and a support mounted for relative rotary movement, two oppositely rotating and similarly arranged cranks mounted on the support to pass the line of centers at the end and midway the sides of the pattern, and a knife carrier pivoted on the outer crank and sliding on the inner crank.

11. A machine of the character described having, in combination, a pattern and a carrier for a device engaging the pattern relatively movable to transfer the device around the pattern, and two cranks connected with the carrier to move it in and out and change its angular position during such relative movement.

12. A machine of the character described having, in combination, a pattern and a support mounted for relative movement, two cranks mounted on the support, a carrier pivoted on one crank and sliding on the other, mechanism for rotating the cranks in opposite directions and bringing them into radial alignment at the sides and end of the pattern, and a device on the carrier held in engagement with the pattern.

13. A sole rounding machine having, in combimition, a pattern, a knife carrier, a

knife movabl v on the carrier to follow the pattern, mechanism for relatively movin the carrier and pattern to transfer the kni e around the pattern beyond its starting point and return it tothe starting point, and means for connecting the knife to move with the carrier away from the pattern during the return movement.

14. A sole rounding machine having, in combination, a pattern, a knife carrier, a knife movable on the carrier to follow the pattern, mechanism for relatively moving the carrier and pattern to transfer the knife around the pattern beyond its starting point and return it to the starti point, and means for connecting the knil g to move away from the pattern with the carrier after the carrier has partially completed its return movement.

15. A sole rounding machine having, in

combination, a pattern, a knife carrier, a knife movable on the carrier, :1 spring for pressing the knife against the pattern, a pawl for retaining the knife in position on the car -ier, against the action of the spring, mechanism for relatively moving the pattern and knife carrier to transfer the knife around the pattern beyond its starting point and return it to the starting point, and means for rendering the pawl active at the completion of the roundingand inactive at the beginning of the rounding. I 16. A sole rounding machine having, in combination, a pattern, a knife carrier, a knife movable on the carrier, a spring for pressing the knife against the pattern, a paw for retaining the knife in position on the carrier, against the action of the spring, mechanism for relatively moving the pattern and knife carrier to transfer the knife around the pattern beyond its starting point and return it to the starting point, and a Weighted arm swung in opposite directions by th stopping and starting of the relative forward travel of the knife for rendering the pawl active and inactive.

17. A sole rounding machine having, in combination, a pattern, a rounding knife, a clamp, a gage for positioning the sole on the pattern, and means for moving the gage into sole locating position during the movement of the clamp into clamping position and then retracting it.

18. A sole rounding machine having, in combination, a pattern, a rounding knife, a clamp, a normally retracted gage, means for moving the gage into sole locating relation to the pattern during the movement of the clam) into clamping position, and means for thereafter moving it out of the path of the knife.

19. A sole rounding machine having, in combination, a pattern, a rounding knife, a clamp, a gage and connections between the gage and clamp for causing the gage to move into andout of sole locating relation to the pattern upon movement 01: the clamp into clamping position. 7

20 A sole rounding niachinehaving, in combination, a pattern, a clamp, a gage carrier adapted to engage the pattern, a gage on the carrier, and connections between the clamp and gage carrier for causing the carrier to move into engagement with the pattern during the movement of the clamp towards the pattern.

21. A sole rounding machine having, in

combination, a pattern, a clamp, a gage carrier adapted to engage the pattern, a gage on the carrier, and connections between the clamp and gage carrier forcausing the carrier to move into engagement with the pattern during the movement of the clamp towards the pattern, and to move away from the pattern as the clamping movement is completed.

22. A sole rounding machine having, in combination, a pattern, a clamp, gage carriers arranged to engage the end and side of the pattern, a spring connected to move the carriers into engagement with the pattern during the movement of the clamp toward the pattern, and connections between the clamp and carriers for retracting the carriers during the final movement of the clamp in either direction.

A sole rounding machine having. in combination, a pattern, a rounding knife, a clamp and a gage for positioning the solo on the pattern movable into and then out of active position during the clamping of the work.

24. A machine for operating about the periphery of shoe parts having an operating tool movable about the periphery of a shoe part, and two revolving cranks con periphery to change its angular position during such movement.

26. A machine for operating about the periphery of shoe parts having, in combination, a tool arranged to operate about the periphery of a shoe part, two cranks one of which is 'pivotally and the other slidably connected to the tool, and gearing for rotating the cranks and for moving the cranks bodily about the shoe part to cause the tool to move in a predetermined path about the shoe part.

' 27. A machine for operating about the of shoe parts having a work support and an operating tool, the two being mounted for relative movement to cause the tool to operate about the periphery of a shoe part carried by the support, and a pair of revolving cranks arranged to control the relative position of the work support and the tool during the performance of the operation.

28. A machine for operating about the periphery of shoe parts having, in combination, a work support and a knife, the work support and knife being relatively movable to cause the knife to perform a cutting operation about the periphery of a shoe part carried by the work support, and two revolving cranks arranged to control the relative position of the work support and the knife to cause the relative movement of the work support and knife so to conform to the contour of the shoe part as to cause the cut of the knife substantially to follow the periphery of the shoe part.

GIDEON JULIAN. 

